CKR1 — Cucumis melo

Summary

MELO3C014230.2 (CKR1, EIN2) on melon chromosome 9 encodes a protein with dual-specificity protein kinase, histidine kinase, and protein serine/threonine kinase activities, along with ethylene receptor activity, ethene binding, and manganese/iron/cadmium ion transmembrane transporter activities. It is associated with sex determination in melon and with fruit ripening, fruit shape, fruit color, seed yield, seed dormancy, leaf senescence, leaf abscission, root elongation, gravitropism, cell expansion, anther development, defense response, oxidative stress tolerance, aluminum stress tolerance, arsenic resistance, and thermotolerance. The gene is linked to ethylene signaling, cytokinin metabolism, jasmonic acid/ethylene-dependent systemic resistance, hydrogen peroxide biosynthesis, and responses to hormones, carbon starvation, and fructose. It localizes to the ER membrane, plasmalemma, nucleus, cytosol, and extracellular regions.